@haibu, signing would require you to obtain a certificate for your phone which is a little complicated at the moment. For hacking, try the HelloOX method which is posted in the S60v3 apps section.
hey rohan you have replied to my post thanks for that but can you tell me how can I sign the app & how can I hack my phone. I know u r on line so if you can tell or give me the link then it will be very great. Thanks
